Definitions of chill:

• noun:   coldness due to a cold environment
• noun:   a sudden numbing dread
• noun:   a sensation of cold that often marks the start of an infection and the development of a fever
• noun:   an almost pleasurable sensation of fright
• verb:   depress or discourage

  Example: "The news of the city's surrender chilled the soldiers"

• verb:   loose heat
• verb:   make cool or cooler

  Example: "Chill the food"

• adjective:   uncomfortably cool

  Example: "A chill wind"

• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #17831)